UX 42 then AZ 2464 at Madrid
Buenos Aires → Madrid → Bilbao
Timetable, Madrid time
02:00UX 42 from Buenos Aires at the gate
15:00AZ 2464 to Bilbao leaves the gatealso KL 3375, EY 4370, SV 4744, DL 6759, AD 6933, AM 6965, UX 7153, SK 8367, RO 9443
13 h apart on the timetable
AZ 2464 leaves 13 h after UX 42 arrives on the timetable: more than half a day, so not a connection we count.